Results 31 to 40 of about 1,273,487 (93)

Marine Applications of Metal‐Modified FEVE Coatings on 6061 Aluminum Alloy for Enhanced Anti‐Corrosion and Anti‐Biofouling

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT This study developed a metal–modified fluoroethylene vinyl ether (FEVE) organic coating on 6061 aluminum alloy, supported by a micro‐arc oxidation (MAO) pretreatment layer, to enhance corrosion resistance and antifouling performance in marine environments.
Chang Liu   +5 more
wiley   +1 more source

醇酸树脂生产废水厌氧生物降解研究

open access: yesGongye shui chuli, 2022
针对醇酸树脂生产废水COD高、成分复杂等问题,以螺旋对称流厌氧反应器(SSSAB)为载体,对比研究了物化预处理对SSSAB处理醇酸树脂生产废水效果的影响,考察是否可通过使用SSSAB省略传统预处理,并确定了废水中有机物的种类。结果表明:SSSAB对经物化预处理的水样的厌氧处理效果优于未经物化预处理的水样,但两者均达到了良好的降解效果。未经物化预处理的水样在平均进水COD为9 133 mg/L,水力停留时间(HRT)为1.25 d,有机负荷(OLR)为7.2 kg/(m³·d)(以COD计,下同)时 ...
杨岩   +5 more
doaj   +2 more sources

Simultaneous Generation of Topographic Models and Manning Roughness Coefficient Maps From Tri‐Stereoscopic Satellite Images: Application to the Huarmey River, Peru

open access: yesThe Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.
Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita   +3 more
wiley   +1 more source

Improving the Electrochemical Properties of SiOx/Graphite Anode for High‐Performance Lithium‐Ion Batteries by Ultrathin Lithium Film Prelithiation

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang   +14 more
wiley   +1 more source

High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li   +5 more
wiley   +1 more source

污泥预处理对UASB污泥颗粒化和除酚性能的影响

open access: yesGongye shui chuli, 2019
采用CaSO4和阳离子聚丙烯酰胺(CPAM)对污泥预处理,研究污泥预处理对污泥颗粒化和UASB处理含酚废水的影响。结果表明,污泥预处理加速颗粒污泥的形成,运行90 d,颗粒污泥的质量分数比对照组高40.3%。污泥颗粒化提高了UASB处理含酚废水的运行性能和耐冲击能力。污泥预处理促进了酚类降解菌(Syntrophorhabdus、Cryptanaerobacter、Syntrophus、Pelotomaculum和Pseudomonas)的富集,加速酚类化合物的降解。
陈春茂   +4 more
doaj   +2 more sources

A Multifunctional MXene/CNF/PVB Fabric via Layer‐by‐Layer Construction for Electromagnetic Interference Shielding, Joule Heating, and Infrared Stealth

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The rapid advancement of 5G communication technology has intensified electromagnetic pollution, creating an urgent demand for flexible multifunctional fabrics with efficient electromagnetic interference (EMI) shielding performance. This study proposes a novel material‐stacked construction strategy to fabricate multifunctional MXene/cellulose ...
Zong‐Kai Yan   +9 more
wiley   +1 more source

干涉条纹的预处理及其应用

open access: yes, 1986
本文介绍了干涉条纹的预处理方法及相应的计算机程序,针对散斑计量中的具体问题对这种预处理程序的作用进行了讨论,给出了适合于杨氏干涉条纹的细化方法及相应的计算机程序,同时对一般条纹的细化在理论上进行了探讨,对预处理程序中的一些参量进行了考核,在此基础上,具体对悬臂梁一端受载时的散斑干涉条纹进行了处理,给出了直接细化和经预处理再细化的计量结果。两种结果的比较表明:预处理程序的应用有助于计量精度的提高 ...
齐平
core  

秸秆预处理产沼气对比试验

open access: yes, 2008
进行了不加菌剂预处理秸秆(A组)、用复合菌剂B1预处理秸秆(B1组)、用复合菌剂B2预处理秸秆(B2组)、不加菌剂预处理秸秆与猪粪混合(C组)4种不同处理方式的秸秆产沼气对比试验,结果表明:用菌剂预处理过的秸秆试验组(B1组和B2组)和秸秆与猪粪混合发酵组(C组)的平均产气量均高于不加菌剂预处理的纯秸秆对照组(A组),分别提高了33.65%,38.32%,39.31%;用复合菌剂预处理过的秸秆产沼气启动时间比不加菌剂预处理的纯秸秆快4天 ...
袁月祥   +7 more
core  

烟用料液的气相色谱分析样品预处理方法

open access: yes, 2007
本发明涉及烟用料液产品内在质量的科学监控,具体地说是烟用料液的气相色谱分析样品预处理方法,采用一次平衡萃取操作提取烟用料液样品中气相色谱分析需要的组分。由于一次平衡萃取操作简单:只有取样、涡旋(或激烈震荡)、离心;误差主要来源仅是烟用料液、溶剂、水和内标物加量的误差,因此误差小,污染的机会少;这些特点对烟用料液中的微量组分分析尤为重要。与其他几种预处理方法比较,烟用料液预处理所采用的一次平衡萃取操作可操作性强、具有广泛的适用性和良好的扩展性 ...
许国旺   +4 more
core  

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